workspace: cleanup multiroot handling

The commit cleans up leftover code that handled the enablement of
multi-root workspace support.

The commit mainly removes the `workspace.supportMultiRootWorkspace`
preference and handling of the preference since it is no longer needed.

Signed-off-by: vince-fugnitto <vincent.fugnitto@ericsson.com>

CHANGELOG.md

@@ -4,6 +4,13 @@
 
 - [Previous Changelogs](https://github.com/eclipse-theia/theia/tree/master/doc/changelogs/)
 
+## v1.31.0 - Unreleased
+
+<a name="breaking_changes_1.31.0">[Breaking Changes:](#breaking_changes_1.31.0)</a>
+
+- [workspace] removed `workspace.supportMultiRootWorkspace` preference [#11538](https://github.com/eclipse-theia/theia/pull/11538)
+- [workspace] removed method `isMultiRootWorkspaceEnabled` from `WorkspaceService` [#11538](https://github.com/eclipse-theia/theia/pull/11538)
+
 ## v1.30.0 - 9/29/2022
 
 - [core] added functionality ot listen to keyboard layout changes [#11689](https://github.com/eclipse-theia/theia/pull/11689)

packages/core/i18n/nls.cs.json

@@ -512,7 +512,6 @@
       "preserveWindow": "Povolit otevírání pracovních ploch v aktuálním okně.",
       "removeFolder": "Jste si jisti, že chcete z pracovního prostoru odebrat následující složku?",
       "removeFolders": "Jste si jisti, že chcete z pracovního prostoru odebrat následující složky?",
-      "supportMultiRootWorkspace": "Řídí, zda je povolena podpora více kořenových pracovních prostorů.",
       "trashTitle": "Přesun {0} do koše",
       "trustEmptyWindow": "Řídí, zda má být prázdný pracovní prostor ve výchozím nastavení důvěryhodný.",
       "trustEnabled": "Řídí, zda je povolena důvěryhodnost pracovního prostoru. Pokud je zakázáno, jsou důvěryhodné všechny pracovní prostory.",

packages/core/i18n/nls.de.json

@@ -512,7 +512,6 @@
       "preserveWindow": "Aktivieren Sie das Öffnen von Arbeitsbereichen im aktuellen Fenster.",
       "removeFolder": "Sind Sie sicher, dass Sie den folgenden Ordner aus dem Arbeitsbereich entfernen möchten?",
       "removeFolders": "Sind Sie sicher, dass Sie die folgenden Ordner aus dem Arbeitsbereich entfernen möchten?",
-      "supportMultiRootWorkspace": "Steuert, ob die Unterstützung von Multi-Root-Arbeitsbereichen aktiviert ist.",
       "trashTitle": "Verschiebe {0} in den Papierkorb",
       "trustEmptyWindow": "Steuert, ob dem leeren Arbeitsbereich standardmäßig vertraut wird oder nicht.",
       "trustEnabled": "Steuert, ob das Vertrauen in Arbeitsbereiche aktiviert ist oder nicht. Wenn deaktiviert, wird allen Arbeitsbereichen vertraut.",

packages/core/i18n/nls.es.json

@@ -512,7 +512,6 @@
       "preserveWindow": "Habilitar la apertura de espacios de trabajo en la ventana actual.",
       "removeFolder": "¿Está seguro de que quiere eliminar la siguiente carpeta del espacio de trabajo?",
       "removeFolders": "¿Está seguro de que quiere eliminar las siguientes carpetas del espacio de trabajo?",
-      "supportMultiRootWorkspace": "Controla si el soporte de espacios de trabajo multi-root está habilitado.",
       "trashTitle": "Mover {0} a la Papelera",
       "trustEmptyWindow": "Controla si el espacio de trabajo vacío es de confianza o no por defecto.",
       "trustEnabled": "Controla si la confianza del espacio de trabajo está activada o no. Si se desactiva, todos los espacios de trabajo son de confianza.",

packages/core/i18n/nls.fr.json

@@ -512,7 +512,6 @@
       "preserveWindow": "Permet d'ouvrir les espaces de travail dans la fenêtre actuelle.",
       "removeFolder": "Êtes-vous sûr de vouloir supprimer le dossier suivant de l'espace de travail ?",
       "removeFolders": "Êtes-vous sûr de vouloir supprimer les dossiers suivants de l'espace de travail ?",
-      "supportMultiRootWorkspace": "Contrôle si le support de l'espace de travail multi-root est activé.",
       "trashTitle": "Déplacer {0} vers la corbeille",
       "trustEmptyWindow": "Contrôle si l'espace de travail vide est fiable ou non par défaut.",
       "trustEnabled": "Contrôle si la confiance de l'espace de travail est activée ou non. S'il est désactivé, tous les espaces de travail sont fiables.",

packages/core/i18n/nls.hu.json

@@ -512,7 +512,6 @@
       "preserveWindow": "Munkaterületek megnyitásának engedélyezése az aktuális ablakban.",
       "removeFolder": "Biztos, hogy a következő mappát szeretné eltávolítani a munkaterületről?",
       "removeFolders": "Biztos, hogy a következő mappákat szeretné eltávolítani a munkaterületről?",
-      "supportMultiRootWorkspace": "Szabályozza, hogy a több gyökérrel rendelkező munkaterület támogatása engedélyezve legyen-e.",
       "trashTitle": "Mozgassa {0} a szemetesbe",
       "trustEmptyWindow": "Szabályozza, hogy az üres munkaterület alapértelmezés szerint megbízható legyen-e vagy sem.",
       "trustEnabled": "Szabályozza, hogy a munkaterület megbízhatósága engedélyezve legyen-e vagy sem. Ha le van tiltva, akkor minden munkaterület megbízható.",

packages/core/i18n/nls.it.json

@@ -512,7 +512,6 @@
       "preserveWindow": "Abilita l'apertura degli spazi di lavoro nella finestra corrente.",
       "removeFolder": "Sei sicuro di voler rimuovere la seguente cartella dall'area di lavoro?",
       "removeFolders": "Sei sicuro di voler rimuovere le seguenti cartelle dallo spazio di lavoro?",
-      "supportMultiRootWorkspace": "Controlla se il supporto allo spazio di lavoro multi-root è abilitato.",
       "trashTitle": "Sposta {0} nel Cestino",
       "trustEmptyWindow": "Controlla se lo spazio di lavoro vuoto è fidato o meno per impostazione predefinita.",
       "trustEnabled": "Controlla se la fiducia dello spazio di lavoro è abilitata o meno. Se disabilitato, tutti gli spazi di lavoro sono affidabili.",

packages/core/i18n/nls.ja.json

@@ -512,7 +512,6 @@
       "preserveWindow": "ワークスペースを現在のウィンドウで開けるようにします。",
       "removeFolder": "ワークスペースから以下のフォルダを削除してよろしいですか?",
       "removeFolders": "ワークスペースから以下のフォルダを削除してよろしいですか?",
-      "supportMultiRootWorkspace": "マルチルート・ワークスペースのサポートを有効にするかどうかを制御します。",
       "trashTitle": "{0}をゴミ箱に移動",
       "trustEmptyWindow": "空のワークスペースをデフォルトで信頼するかどうかを制御します。",
       "trustEnabled": "ワークスペースの信頼を有効にするかどうかを制御します。無効の場合、すべてのワークスペースが信頼されます。",

packages/core/i18n/nls.json

@@ -512,7 +512,6 @@
       "preserveWindow": "Enable opening workspaces in current window.",
       "removeFolder": "Are you sure you want to remove the following folder from the workspace?",
       "removeFolders": "Are you sure you want to remove the following folders from the workspace?",
-      "supportMultiRootWorkspace": "Controls whether multi-root workspace support is enabled.",
       "trashTitle": "Move {0} to Trash",
       "trustEmptyWindow": "Controls whether or not the empty workspace is trusted by default.",
       "trustEnabled": "Controls whether or not workspace trust is enabled. If disabled, all workspaces are trusted.",

packages/core/i18n/nls.pl.json

@@ -512,7 +512,6 @@
       "preserveWindow": "Umożliwia otwieranie obszarów roboczych w bieżącym oknie.",
       "removeFolder": "Czy na pewno chcesz usunąć poniższy folder z obszaru roboczego?",
       "removeFolders": "Czy na pewno chcesz usunąć następujące foldery z obszaru roboczego?",
-      "supportMultiRootWorkspace": "Określa, czy włączona jest obsługa przestrzeni roboczej z wieloma rootami.",
       "trashTitle": "Przenieś {0} do kosza",
       "trustEmptyWindow": "Określa, czy pusty obszar roboczy jest domyślnie zaufany, czy nie.",
       "trustEnabled": "Określa, czy zaufanie do obszaru roboczego jest włączone, czy nie. Jeśli wyłączone, wszystkie obszary robocze są zaufane.",

packages/core/i18n/nls.pt-br.json

@@ -512,7 +512,6 @@
       "preserveWindow": "Permitir a abertura de espaços de trabalho na janela atual.",
       "removeFolder": "Você tem certeza de que deseja remover a seguinte pasta do espaço de trabalho?",
       "removeFolders": "Você tem certeza de que quer remover as seguintes pastas do espaço de trabalho?",
-      "supportMultiRootWorkspace": "Controla se o suporte de espaço de trabalho multi-raiz está habilitado.",
       "trashTitle": "Mudar {0} para Lixo",
       "trustEmptyWindow": "Controla se o espaço de trabalho vazio é ou não confiável por padrão.",
       "trustEnabled": "Controla se a confiança no espaço de trabalho está ou não habilitada. Se desativado, todos os espaços de trabalho são confiáveis.",

packages/core/i18n/nls.pt-pt.json

@@ -512,7 +512,6 @@
       "preserveWindow": "Activar a abertura de espaços de trabalho na janela actual.",
       "removeFolder": "Tem a certeza de que quer remover a seguinte pasta do espaço de trabalho?",
       "removeFolders": "Tem a certeza de que quer remover as seguintes pastas do espaço de trabalho?",
-      "supportMultiRootWorkspace": "Controla se o suporte multi-raiz do espaço de trabalho está activado.",
       "trashTitle": "Mover {0} para o Lixo",
       "trustEmptyWindow": "Controla se o espaço de trabalho vazio é ou não de confiança por defeito.",
       "trustEnabled": "Controla se a confiança no espaço de trabalho está ou não activada. Se estiver desactivado, todos os espaços de trabalho são de confiança.",

packages/core/i18n/nls.ru.json

@@ -512,7 +512,6 @@
       "preserveWindow": "Включить открытие рабочих пространств в текущем окне.",
       "removeFolder": "Вы уверены, что хотите удалить следующую папку из рабочей области?",
       "removeFolders": "Вы уверены, что хотите удалить следующие папки из рабочей области?",
-      "supportMultiRootWorkspace": "Управляет тем, включена ли поддержка многокорневого рабочего пространства.",
       "trashTitle": "Переместить {0} в корзину",
       "trustEmptyWindow": "Управляет тем, доверяется ли пустая рабочая область по умолчанию.",
       "trustEnabled": "Управляет тем, включено или нет доверие к рабочему пространству. Если отключено, все рабочие пространства являются доверенными.",

packages/core/i18n/nls.zh-cn.json

@@ -512,7 +512,6 @@
       "preserveWindow": "启用在当前窗口中打开工作空间。",
       "removeFolder": "你确定要从工作区删除以下文件夹吗?",
       "removeFolders": "你确定要从工作区删除以下文件夹吗?",
-      "supportMultiRootWorkspace": "控制是否启用多根工作区支持。",
       "trashTitle": "将{0}移至垃圾箱",
       "trustEmptyWindow": "控制空工作区是否被默认信任。",
       "trustEnabled": "控制是否启用工作区信任。如果禁用,所有工作空间都被信任。",

packages/navigator/src/browser/navigator-contribution.ts

@@ -38,7 +38,6 @@ import { FileDownloadCommands } from '@theia/filesystem/lib/browser/download/fil
 import {
     Command,
     CommandRegistry,
-    DisposableCollection,
     isOSX,
     MenuModelRegistry,
     MenuPath,
@@ -259,17 +258,6 @@ export class FileNavigatorContribution extends AbstractViewContribution<FileNavi
         }
     }
 
-    async onStart(app: FrontendApplication): Promise<void> {
-        this.workspacePreferences.ready.then(() => {
-            this.updateAddRemoveFolderActions(this.menuRegistry);
-            this.workspacePreferences.onPreferenceChanged(change => {
-                if (change.preferenceName === 'workspace.supportMultiRootWorkspace') {
-                    this.updateAddRemoveFolderActions(this.menuRegistry);
-                }
-            });
-        });
-    }
-
     async initializeLayout(app: FrontendApplication): Promise<void> {
         await this.openView();
     }
@@ -549,6 +537,14 @@ export class FileNavigatorContribution extends AbstractViewContribution<FileNavi
             label: nls.localizeByDefault('Close All'),
             order: 'c'
         });
+
+        registry.registerMenuAction(NavigatorContextMenu.WORKSPACE, {
+            commandId: FileNavigatorCommands.ADD_ROOT_FOLDER.id,
+            label: WorkspaceCommands.ADD_FOLDER.label
+        });
+        registry.registerMenuAction(NavigatorContextMenu.WORKSPACE, {
+            commandId: WorkspaceCommands.REMOVE_FOLDER.id
+        });
     }
 
     override registerKeybindings(registry: KeybindingRegistry): void {
@@ -712,18 +708,4 @@ export class FileNavigatorContribution extends AbstractViewContribution<FileNavi
         await model.refresh();
     }
 
-    private readonly toDisposeAddRemoveFolderActions = new DisposableCollection();
-    private updateAddRemoveFolderActions(registry: MenuModelRegistry): void {
-        this.toDisposeAddRemoveFolderActions.dispose();
-        if (this.workspacePreferences['workspace.supportMultiRootWorkspace']) {
-            this.toDisposeAddRemoveFolderActions.push(registry.registerMenuAction(NavigatorContextMenu.WORKSPACE, {
-                commandId: FileNavigatorCommands.ADD_ROOT_FOLDER.id,
-                label: WorkspaceCommands.ADD_FOLDER.label!
-            }));
-            this.toDisposeAddRemoveFolderActions.push(registry.registerMenuAction(NavigatorContextMenu.WORKSPACE, {
-                commandId: WorkspaceCommands.REMOVE_FOLDER.id
-            }));
-        }
-    }
-
 }

packages/workspace/src/browser/quick-open-workspace.ts

@@ -23,6 +23,7 @@ import URI from '@theia/core/lib/common/uri';
 import { FileService } from '@theia/filesystem/lib/browser/file-service';
 import { FileStat } from '@theia/filesystem/lib/common/files';
 import { nls, Path } from '@theia/core/lib/common';
+import { CommonWorkspaceUtils } from '../common/utils';
 
 interface RecentlyOpenedPick extends QuickPickItem {
     resource?: URI
@@ -39,6 +40,7 @@ export class QuickOpenWorkspace {
     @inject(LabelProvider) protected readonly labelProvider: LabelProvider;
     @inject(WorkspacePreferences) protected preferences: WorkspacePreferences;
     @inject(EnvVariablesServer) protected readonly envServer: EnvVariablesServer;
+    @inject(CommonWorkspaceUtils) protected workspaceUtils: CommonWorkspaceUtils;
 
     protected readonly removeRecentWorkspaceButton: QuickInputButton = {
         iconClass: 'codicon-remove-close',
@@ -47,7 +49,7 @@ export class QuickOpenWorkspace {
 
     async open(workspaces: string[]): Promise<void> {
         this.items = [];
-        const [homeDirUri, tempWorkspaceFile] = await Promise.all([
+        const [homeDirUri] = await Promise.all([
             this.envServer.getHomeDirUri(),
             this.workspaceService.getUntitledWorkspace()
         ]);
@@ -63,12 +65,8 @@ export class QuickOpenWorkspace {
             try {
                 stat = await this.fileService.resolve(uri);
             } catch { }
-            if (!stat ||
-                !this.preferences['workspace.supportMultiRootWorkspace'] && !stat.isDirectory) {
-                continue; // skip the workspace files if multi root is not supported
-            }
-            if (uri.toString() === tempWorkspaceFile.toString()) {
-                continue; // skip the temporary workspace files
+            if (this.workspaceUtils.isUntitledWorkspace(uri) || !stat) {
+                continue; // skip the temporary workspace files or an undefined stat.
             }
             const icon = this.labelProvider.getIcon(stat);
             const iconClasses = icon === '' ? undefined : [icon + ' file-icon'];

packages/workspace/src/browser/workspace-commands.ts

@@ -326,8 +326,8 @@ export class WorkspaceCommandContribution implements CommandContribution {
         }));
         this.preferences.ready.then(() => {
             registry.registerCommand(WorkspaceCommands.ADD_FOLDER, {
-                isEnabled: () => this.workspaceService.isMultiRootWorkspaceEnabled,
-                isVisible: () => this.workspaceService.isMultiRootWorkspaceEnabled,
+                isEnabled: () => this.workspaceService.opened,
+                isVisible: () => this.workspaceService.opened,
                 execute: async () => {
                     const selection = await this.fileDialogService.showOpenDialog({
                         title: WorkspaceCommands.ADD_FOLDER.label!,
@@ -348,7 +348,7 @@ export class WorkspaceCommandContribution implements CommandContribution {
             });
             registry.registerCommand(WorkspaceCommands.REMOVE_FOLDER, this.newMultiUriAwareCommandHandler({
                 execute: uris => this.removeFolderFromWorkspace(uris),
-                isEnabled: () => this.workspaceService.isMultiRootWorkspaceEnabled,
+                isEnabled: () => this.workspaceService.isMultiRootWorkspaceOpened,
                 isVisible: uris => this.areWorkspaceRoots(uris) && this.workspaceService.saved
             }));
         });

packages/workspace/src/browser/workspace-frontend-contribution.spec.ts

@@ -39,32 +39,21 @@ describe('workspace-frontend-contribution', () => {
         after(() => disableJSDOM());
 
         ([
-
             [OS.Type.Linux, 'browser', true, { title, canSelectFiles: true, canSelectFolders: true, filters }],
-            [OS.Type.Linux, 'browser', false, { title, canSelectFiles: false, canSelectFolders: true }],
             [OS.Type.Linux, 'electron', true, { title, canSelectFiles: true, canSelectFolders: false, filters }],
-            [OS.Type.Linux, 'electron', false, { title, canSelectFiles: false, canSelectFolders: true }],
-
             [OS.Type.Windows, 'browser', true, { title, canSelectFiles: true, canSelectFolders: true, filters }],
-            [OS.Type.Windows, 'browser', false, { title, canSelectFiles: false, canSelectFolders: true }],
             [OS.Type.Windows, 'electron', true, { title, canSelectFiles: true, canSelectFolders: false, filters }],
-            [OS.Type.Windows, 'electron', false, { title, canSelectFiles: false, canSelectFolders: true }],
-
             [OS.Type.OSX, 'browser', true, { title, canSelectFiles: true, canSelectFolders: true, filters }],
-            [OS.Type.OSX, 'browser', false, { title, canSelectFiles: false, canSelectFolders: true }],
             [OS.Type.OSX, 'electron', true, { title, canSelectFiles: true, canSelectFolders: true, filters }],
-            [OS.Type.OSX, 'electron', false, { title, canSelectFiles: true, canSelectFolders: true, filters }]
-
         ] as [OS.Type, 'browser' | 'electron', boolean, OpenFileDialogProps][]).forEach(test => {
-            const [type, environment, supportMultiRootWorkspace, expected] = test;
+            const [type, environment, _, expected] = test;
             const electron = environment === 'electron' ? true : false;
             const os = (OS.Type as any)[type]; // eslint-disable-line @typescript-eslint/no-explicit-any
             const actual = WorkspaceFrontendContribution.createOpenWorkspaceOpenFileDialogProps({
                 type,
                 electron,
-                supportMultiRootWorkspace
             });
-            it(`createOpenWorkspaceOpenFileDialogProps - OS: ${os}, Environment: ${environment}, Multi-root workspace: ${supportMultiRootWorkspace ? 'yes' : 'no'}`, () => {
+            it(`createOpenWorkspaceOpenFileDialogProps - OS: ${os}, Environment: ${environment}`, () => {
                 expect(actual).to.be.deep.equal(expected);
             });
         });